I have a character that I export to COLLADA, and all the arm and leg bone animations export fine. But for the eyes, I have them set to be constrained using TrackTo to a couple of target bones. The problem is, these eye bones don't export with any animation data in COLLADA.

Even if I use Bake Action with Clear Constraints, the baked eye bone keyframes are not the result of the TrackTo constraint (baked). The eye keyframes contain no rotations.